scholarly journals ACUTE ANEURYSM SURGERY USING THREE-DIMENSIONAL CT ANGIOGRPHY WITHOUT CONVENTIONAL CATHETER ANGIOGRAPHY

2002 ◽  
Vol 48 (2) ◽  
pp. 63-73 ◽  
Author(s):  
MASATO MATSUMOTO ◽  
YUJI ENDO ◽  
MASANORI SATO ◽  
SONOMI SATO ◽  
JUN SAKUMA ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Aneurysm Surgery ◽  
Catheter Angiography ◽  
Conventional Catheter Angiography

Cerebral Arteriovenous Malformations: Comparison of Novel Magnetic Resonance Angiographic Techniques and Conventional Catheter Angiography

Neurosurgery ◽  
2001 ◽  
Vol 48 (5) ◽  
pp. 973-983 ◽  
Author(s):  
Daniel James Warren ◽  
Nigel Hoggard ◽  
Lee Walton ◽  
Matthias Walter Richard Radatz ◽  
Andras A. Kemeny ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Mr Imaging ◽  
Arteriovenous Malformations ◽  
Mr Angiography ◽  
Three Dimensional ◽  
Time Of Flight ◽  
Catheter Angiography ◽  
Cerebral Arteriovenous Malformations ◽  
Gadolinium Chelate ◽  
Conventional Catheter Angiography

Abstract OBJECTIVE To investigate the potential of novel magnetic resonance (MR) angiographic techniques for the assessment of cerebral arteriovenous malformations. METHODS Forty patients who were about to undergo stereotactic radiosurgery were prospectively recruited. Three-dimensional, sliding-slab interleaved ky (SLINKY), time-of-flight acquisition was performed, as was a dynamic MR digital subtraction angiography (DSA) procedure in which single thick slices (6–10 cm) were obtained using a radiofrequency spoiled Fourier-acquired steady-state sequence (1 image/s). Sixty images were acquired, in two or three projections, during passage of a 6- to 10-ml bolus of gadolinium chelate. Subtraction and postprocessing were performed, and images were viewed in an inverted cine mode. SLINKY time-of-flight acquisition was repeated after the administration of gadolinium. Routine stereotactic conventional catheter angiography was performed after MR imaging. All images were assessed (in a blinded randomized manner) for Spetzler-Martin grading and determination of associated vascular pathological features. RESULTS Forty-one arteriovenous malformations were assessed in 40 patients. Contrast-enhanced (CE) SLINKY MR angiography was the most consistent MR imaging technique, yielding a 95% correlation with the Spetzler-Martin classification defined by conventional catheter angiography; MR DSA exhibited 90% agreement, and SLINKY MR angiography exhibited 81% agreement. CE SLINKY MR angiography provided improved nidus delineation, compared with non-CE SLINKY MR angiography. Dynamic information from MR DSA significantly improved the observation of early-draining veins and associated aneurysms. CONCLUSION CE SLINKY MR angiographic assessment of cerebral arteriovenous malformations offers significant advantages, compared with the use of non-CE SLINKY MR angiography, including improved nidus demonstration. MR DSA shows promise as a noninvasive method for dynamic angiography but is presently restricted by limitations in both temporal and spatial resolution.

Three-Dimensional Model for Virtual Surgical Simulation, during Complex Skull Base Surgery and Aneurysm Surgery

Skull Base ◽  
2008 ◽  
Vol 18 (S 01) ◽  
Author(s):  
Akio Morita ◽  
Toshikazu Kimura ◽  
Shigeo Sora ◽  
Kengo Nishimura ◽  
Hisayuki Sugiyama ◽  
...  
Keyword(s):  
Skull Base ◽  
Surgical Simulation ◽  
Skull Base Surgery ◽  
Three Dimensional ◽  
Aneurysm Surgery ◽  
Dimensional Model ◽  
Three Dimensional Model

Abstract TP136: Four-dimensionally Guided Three-dimensional Color-doppler Ultrasonography Quantifies Carotid Artery Stenoses With Equally High Reproducibility and Accuracy Compared to Catheter Angiography

Stroke ◽  
2016 ◽  
Vol 47 (suppl_1) ◽  
Author(s):  
Roland Richard Macharzina ◽  
Sascha Kocher ◽  
Steven R Messé ◽  
Fabian Hoffmann ◽  
Thomas Rutkowski ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Doppler Ultrasonography ◽  
Binary Classification ◽  
Color Doppler ◽  
Pearson Correlation ◽  
Three Dimensional ◽  
Catheter Angiography ◽  
High Reproducibility ◽  
Stenosis Quantification ◽  
Stenosis Detection

Introduction: Clinical stratification in patients with ICAS largely depends on symptomatic status and stenosis grading. The purpose was to analyze the agreement and binary accuracy for the degree of internal carotid artery stenoses (ICAS) as determined by four-dimensional (4D) real-time guided three-dimensional color-Doppler (3DC) ultrasonography (4D/3DC-US) compared to catheter angiography (CA). Hypothesis: We hypothesized that 4D/3DC-US is non inferior to CA in grading ICAS in selected patients. Methods: Screening with 4D/3DC-US was performed in 93 patients (122 ICAS) admitted to our vascular center.Main exclusion criteria were insufficient image quality, previous revascularization and contraindications to CA. Eighty patients were prospectively examined in optimal planes with 4D-US assisted static 3DC-US color-Doppler (10MHz) followed by blinded multiplanar off-line rendering to determine %-NASCET stenosis. Multiplane selective CA of the same ICAS were quantified with dedicated software in a blinded fashion. Results: Quantitative CA of 103 stenoses with a mean degree of 65 ± 17% were compared to 4D/3DC-US resulting in a Pearson correlation coefficient of 0.89 and a standard deviation of differences (SDD) of 8.1% at a bias of +1.7%. Binary 50, 60 and 70%-stenosis detection with 3DC-US revealed an accuracy of 96, 89, 85%, a sensitivity of 97, 92, 87% and a specificity of 92, 83 and 84%. Interobserver SDD for CA of 52 stenoses (7.2%) did not differ from SDD between 3DC-US and CA (P = 0.274). Conclusions: 4D/3DC-US allowed good metric stenosis quantification and accurate binary classification with high reproducibility in a selected cohort.

Surgical views from three-dimensional digital subtraction angiography for the planning of aneurysm surgery

2007 ◽  
Vol 34 (3) ◽  
pp. 205-211 ◽  
Author(s):  
L. Thines ◽  
C. Taschner ◽  
J.-P. Lejeune ◽  
V. Le Thuc ◽  
J.-P. Pruvo ◽  
...  
Keyword(s):  
Digital Subtraction Angiography ◽  
Three Dimensional ◽  
Digital Subtraction ◽  
Aneurysm Surgery
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